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Finding the Fourth Proportional to 17,736.40, 26,599.80 and 5,256.40

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Solution

The fourth proportional to 17,736.40, 26,599.80 and 5,256.40 is: 7,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,736.40 : 26,599.80 = 5,256.40 : x
  2. Step 2: Convert to fraction form
    17,736.40/26,599.80 = 5,256.40/x
  3. Step 3: Cross multiply
    17,736.40x = 26,599.80 × 5,256.40
  4. Step 4: Simplify right side
    17,736.40x = 139,819,188.72
  5. Step 5: Solve for x
    x = 139,819,188.72/17,736.40
  6. Step 6: Final answer
    x = 7,883.18

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